Grill brush



FIG. 1 is a front elevational view of a grill brush showing my newdesign;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is a perspective view thereof.

The side not illustrated is a mirror image of the side illustrated inFIG. 3 and the scraper blade illustrated in dashed lines does not formpart of the claimed design.

The ornamental design for a grill brush, as shown and described.